<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>苹果产品导航栏</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .navigationbar {
            width: 100%;
        }
        .navigationbar ul{
            margin: 0 auto;
            width: 980px;
        }
        .navigationbar ul li{
            list-style: none;
            width: 70px;
            height: 50px;
            display: block;
            cursor: pointer;
            float: left;
            text-align: center;
            background-size: cover;
        }
    </style>
</head>
<body>
    <div class="navigationbar">
        <ul>
            <li>a</li>
            <li>商店</li>
            <li>Mac</li>
            <li>iPad</li>
            <li>iPhone</li>
            <li>Watch</li>
            <li>Vision</li>
            <li>AirPods</li>
            <li>家具</li>
            <li>娱乐</li>
            <li>配件</li>
            <li>技术支持</li>
            <li>b</li>
            <li>c</li>
        </ul>
    </div>
</body>
</html>